* {
    margin: 0;
    padding: 0;
    font-family: "Arial,sans-serif";
}

.content {
    width: 100vw;
    height: 100vh;
    background: url(denglu1.jpg) no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-content {
    position: relative;
    width: 800px;
    height: 360px;
    background: linear-gradient(180deg, rgb(23, 133, 130) 0%, rgba(255, 255, 255, 0) 100%);
    border-radius: 30px;
    padding: 30px;
}

.banner-box {
    display: inline-block;
    width: 500px;
    height: 100%;
    background: url(denglu2.jpg) no-repeat;
    background-size: cover;
    border-radius: 20px 0 0 20px;
}

/* 登录框 */
.login-box {
    width: 300px;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    border-radius: 0 30px 30px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 注册框（默认隐藏） */
.reg-box {
    width: 300px;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    border-radius: 0 30px 30px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    display: none; /* 默认隐藏 */
}

.login-box>h1, .reg-box>h1 {
    font-size: 30px;
    margin: 40px 0 20px 0;
    color: aliceblue;
}

.login-box>input, .reg-box>input {
    margin-bottom: 15px;
    width: 200px;
    height: 36px;
    padding: 0 20px;
    border-radius: 36px;
    border: none;
    outline: none;
    font-size: 14px;
}

/* 👇 这里是修改后的按钮样式，加了按压效果 */
.login-btn {
    margin-top: 10px;
    width: 200px;
    height: 40px;
    border-radius: 40px;
    background-color: #2daaa6;
    border: none;
    outline: none;
    font-size: 16px;
    color: white;
    cursor: pointer;

    /* 关键：加过渡动画，让下沉/上浮更丝滑 */
    transition: all 0.2s ease;
}

/* 点击按住时：下沉效果 */
.login-btn:active {
    transform: scale(0.95);   /* 轻微缩小，模拟按下去 */
    opacity: 0.9;              /* 稍微变暗，增强真实感 */
    /* 如果你想要“往下移”的下沉感，用下面这行替换上面两行：
    transform: translateY(2px);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
    */
}

.switch {
    margin-top: 15px;
    color: aliceblue;
    font-size: 14px;
}

.switch span {
    color: #fff;
    font-weight: bold;
    cursor: pointer;
}

/* 响应式 */
@media screen and (max-width: 900px) {
    .login-content {
        margin: 0 30px;
    }
    .banner-box {
        border-radius: 20px;
    }
    .login-box, .reg-box {
        background-color: #2daaa6;
    }
}

@media screen and (max-width: 700px) {
    .content {
        background: url(denglu2.jpg) no-repeat center;
    }
    .login-content {
        background-color: transparent;
    }
    .banner-box {
        display: none;
    }
    .login-box, .reg-box {
        position: initial;
        margin: auto;
        background-color: transparent;
    }
}